<ul class="nav nav-tabs nav-stacked">
  <li class="text-center {$document_class}"><a href="{:U(GROUP_NAME . '/Document/index')}">文献列表</a></li>
  <li class="text-center {$adddocument_class}"><a href="{:U(GROUP_NAME . '/Document/addDocument')}">添加文献</a></li>
  <!-- <li class="text-center {$role_class}"><a href="{:U(GROUP_NAME . '/Index/role')}">角色列表</a></li>
  <li class="text-center {$addRole_class}"><a href="{:U(GROUP_NAME . '/Index/addRole')}">添加角色</a></li>
  <li class="text-center {$node_class}"><a href="{:U(GROUP_NAME . '/Index/node')}">节点列表</a></li>
  <li class="text-center {$addNode_class}"><a href="{:U(GROUP_NAME . '/Index/addNode')}">添加节点</a></li> -->
</ul>